599 citations · 2.1k across the 20 of their papers we have counts for
20 papers
Quantum state reconstruction of spectral field modes: homodyne and resonator detection schemes
Felippe A. S. Barbosa, Antonio S. Coelho, Katiuscia N. Cassemiro +4
We revisit the problem of quantum state reconstruction of light beams from the photocurrent quantum noise. As is well-known, but often overlooked, two longitudinal field modes cont…
Beyond spectral homodyne detection: complete quantum measurement of spectral modes of light
Felippe A. S. Barbosa, Antonio S. Coelho, Katiuscia N. Cassemiro +4
Spectral homodyne detection, a widely used technique for measuring quantum properties of light beams, cannot retrieve all the information needed to reconstruct the quantum state of…
Adaptively measuring the temporal shape of ultrashort single photons for higher-dimensional quantum information processing
Constantina Polycarpou, Katiuscia N. Cassemiro, Giovanni Venturi +2
A photon is the single excitation of a particular spatiotemporal mode of the electromagnetic field. A precise knowledge of the mode structure is therefore essential for its process…
Testing spectral filters as Gaussian quantum optical channels
K. Laiho, A. Christ, K. N. Cassemiro +1
We experimentally investigate the mode characteristics of multimode radiation fields propagating through frequency dependent Gaussian channels. After manipulating the twin beams em…
Probing multimode squeezing with correlation functions
Andreas Christ, Kaisa Laiho, Andreas Eckstein +2
Broadband multimode squeezers constitute a powerful quantum resource with promising potential for different applications in quantum information technologies such as information cod…
Probing the negative Wigner function of a pulsed single photon point by point
Kaisa Laiho, Katiuscia N. Cassemiro, David Gross +1
We investigate quantum properties of pulsed light fields point by point in phase space. We probe the negative region of the Wigner function of a single photon generated by the mean…